Rivermatics

USGS Streamgage 10265150

Hot C A Flume near Mammoth Lakes, CA

Hot C A Flume near Mammoth Lakes, CA is USGS streamgage 10265150 in California, monitoring river discharge in hydrologic subbasin 18090102. It drains a watershed of about 68 square miles. Discharge records at this site go back to 1982. Typical flow runs near 55.4 cfs in July and 45.9 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State
California
Drainage area
68 sq mi
Gauge elevation
6,953 ft
Subbasin (HUC-8)
18090102
Coordinates
37.66881, -118.81761
USGS site number
10265150
Records begin
1982-11-17 (44 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Hot C A Flume near Mammoth Lakes, CA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
35.6 36.2 36.8
35.2 36.1 36.9
34.8 35.9 37
34.5 35.8 37.2
34.2 35.7 37.3
33.9 35.6 37.4
33.6 35.5 37.4
33.3 35.4 37.5
33 35.3 37.5
33 35.3 37.8
33 35.6 38.3
32.7 35.6 38.4
32.3 35.4 38.3
32.2 35.2 38.2

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 37 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 32.3 40.6 52.9
February 33.2 41.5 53
March 34.3 43.5 53.5
April 35.1 45.9 62.1
May 39.2 59.8 110.8
June 42 75.9 183.7
July 36.4 55.4 179.2
August 33 45.9 104.6
September 30.9 42.1 77.9
October 31.1 40.7 64.4
November 31.7 40.9 58.5
December 31.2 39.6 53.7

All values in cubic feet per second (cfs).

Common questions

When does Hot C A Flume near Mammoth Lakes, CA normally run highest?
June, on the long-term record. The median daily flow that month is about 75.9 cfs, against 39.6 cfs in December, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Hot C A Flume near Mammoth Lakes, CA?
It depends on the month. In January, half of days historically fall near 40.6 cfs, with the middle 80% of days between 32.3 and 52.9 cfs. The month-by-month table on this page gives the full range.
How long has Hot C A Flume near Mammoth Lakes, CA been measured?
Discharge records at USGS site 10265150 begin in 1982, about 44 years, covering roughly 9,034 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Hot C A Flume near Mammoth Lakes, CA?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Hot C A Flume near Mammoth Lakes, CA?
The gauge sits at 37.66881, -118.81761, in California, in hydrologic subbasin 18090102, at an elevation of about 6,953 feet, draining roughly 68 square miles.
Can I use Hot C A Flume near Mammoth Lakes, CA data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Other gauges in this subbasin